: New keyboard shortcuts include F1 for help, F2 for history browsing, and F3 for a dedicated "paste mode". 2. Smarter Error Messages
: If you misspell a keyword argument in a function call, the traceback will suggest the correct one (e.g., "Did you mean 'maxsplit'?"). Under the Hood: Experimental Performance Boosts
: Syntax and errors now feature default color support to improve readability. python 313 release notes verified
The default interactive shell has been completely overhauled, based on code from the PyPy project. It now offers features previously only available in third-party tools:
Python 3.13, officially released on , marks a significant milestone in the language's evolution, introducing transformative experimental features and major quality-of-life improvements for developers. This version focuses on performance foundations, such as the removal of the Global Interpreter Lock (GIL) and the introduction of a Just-In-Time (JIT) compiler, while also providing a modern interactive experience. Key Highlights: A Reimagined Developer Experience 1. A Brand New Interactive Interpreter (REPL) : New keyboard shortcuts include F1 for help,
: Users can recall and edit entire blocks of code (like functions or loops) as a single unit rather than line-by-line.
: If a local script shadows a standard library module (e.g., a file named random.py ), the interpreter will explicitly suggest renaming the file. Under the Hood: Experimental Performance Boosts : Syntax
: Common tasks like exiting or accessing help no longer require function calls; you can simply type exit , quit , or help .
Building on improvements from Python 3.12, this release provides even more contextual guidance: